منابع مشابه
The path from nowhere?
Framing the Problem The major intellectual framing of Making Fair Choices on the Path to Universal Health Coverage is implicit in its title. The report concerns fairness and efficiency 'on the path' to universal coverage. In other words, the approach is to think about securing universal coverage as a journey in which the task is to guide and steer the process in some directions rather than othe...
متن کاملPrevalence of “nowhere analyticity”
This note brings a complement to the study of genericity of functions which are nowhere analytic mainly in a measure-theoretic sense. We extend this study in Gevrey classes of functions.
متن کاملNowhere to hide.
Northern Hemisphere's carbon dioxide emissions. "That's much more than any terrestrial plant ecologist would have considered likely," Tans said. Conserving tree and plant populations, he added, might raise their carbon dioxide uptake even higher. Understanding how carbon cycles through plants is vital to decreasing global warming. By burning fuel and clearing forests, human activity generates 7...
متن کاملNowhere-zero flow polynomials
In this article we introduce the flow polynomial of a digraph and use it to study nowherezero flows from a commutative algebraic perspective. Using Hilbert’s Nullstellensatz, we establish a relation between nowhere-zero flows and dual flows. For planar graphs this gives a relation between nowhere-zero flows and flows of their planar duals. It also yields an appealing proof that every bridgeless...
متن کاملOn nowhere dense graphs
A set A of vertices of a graph G is called d-scattered in G if no two d-neighborhoods of (distinct) vertices of A intersect. In other words, A is d-scattered if no two distinct vertices of A have distance at most 2d. This notion was isolated in the context of finite model theory by Gurevich and recently it played a prominent role in the study of homomorphism preservation theorems for special cl...
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ژورنال
عنوان ژورنال: IDEA JOURNAL
سال: 1969
ISSN: 2208-9217,1445-5412
DOI: 10.37113/ideaj.vi0.207